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Gas sensing applications using magnetized cold plasma multilayers
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DOI：10.1007/s11082-022-03594-y.png)
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In this paper, we theoretically propose a novel magnetic field-dependent sensor using omnidirectional magnetized cold plasma photonic crystal in one dimension for TE polarization. The structure consists of asymmetric two periodic arrays from magnetized cold plasma and sample cavity layer. Between the periodic arrays, a sample cavity is sandwiched between two quartz layers. The methodology of the proposed detector depends on the appearance of a sensitive defect mode. The results clear that the defect mode frequency depends significantly on the refractive index of the sample, and it is extremely sensitive to incident angle changes, applied magnetic field, the number density of electrons, and sample layer thickness. The optimized proposed sensor has high sensitivity of 15.14 GHz/RIU, quality-factor of 527.32, and figure of merit of 1066.20 RIU-1, where RIU means refractive index unit. So, the proposed sensor can aid in solving many challenges in chemical and environmental applications.
Keyword:
Photonic crystal
Magnetized cold plasma
Gas sensor
期刊
IF:
4
论文数:
10.0K
被引数:
1.8W
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